A chemical liquid mixing device

Abstract

The utility model relates to medical liquid preparation technical field, concretely relates to a liquid medicine mixing device, including mixing bin, the top of mixing bin is equipped with feed inlet, the top of mixing bin is installed the sealing plate for the plugging feed inlet, the top fixed mounting of mixing bin has accurate liquid control subassembly, and the side wall fixed connection of mixing bin has the discharge head. The utility model discloses the design of integrated mixing bin, and the mixing of medicine powder and solvent is completed in the closed environment, and medical staff only needs to extract liquid medicine through the needle in the final step, effectively avoids the accidental puncture risk caused by the frequent replacement of needle in traditional operation, and simultaneously reduces the possibility of liquid medicine exposure pollution.

Description

Technical Field

[0001] This utility model relates to the field of medical liquid preparation technology, specifically to a liquid mixing device. Background Technology

[0002] Currently, the preparation of penicillin skin test solution in clinical practice is quite cumbersome and requires extremely high accuracy. Traditional preparation methods require medical staff to draw and dilute the solution multiple times, which is prone to dosage errors. Furthermore, frequent changes of syringes and needles increase the risk of needlestick injuries for medical staff, and also consume considerable time and effort. Therefore, there is an urgent need for a technical solution to address these problems. Utility Model Content

[0003] The purpose of this invention is to provide a liquid medicine mixing device to solve the problems in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0005] A liquid mixing device includes a mixing chamber, an inlet at the top of the mixing chamber, a sealing plate for sealing the inlet at the top of the mixing chamber, a precision liquid control component fixedly installed at the top of the mixing chamber, and an outlet head fixedly connected to the side wall of the mixing chamber.

[0006] Furthermore, the precision liquid control component includes an observation chamber fixedly installed on top of the mixing chamber. A sleeve is fixedly installed inside the observation chamber, and a liquid outlet is provided at the end of the sleeve. The liquid outlet is connected to the interior of the mixing chamber through a pipe. A piston rod is slidably installed inside the sleeve, and a liquid inlet pipe is fixedly connected to the top of the sleeve. The top of the liquid inlet pipe penetrates the top of the observation chamber and is fixedly connected to a pointed tip, which has multiple liquid inlet holes.

[0007] Furthermore, a protective tube is slidably sleeved on the outside of the inlet pipe, a rubber soft plug is installed on the top of the protective tube, a limiting plate is fixedly connected to the bottom of the protective tube, a limiting sleeve is fixedly connected to the top of the mixing chamber, and the limiting plate is slidably installed inside the limiting sleeve. A spring is slidably installed on the outside of the inlet pipe, and the two ends of the spring are respectively pressed against the bottom of the limiting plate and the top of the mixing chamber.

[0008] Furthermore, the discharge head is cone-shaped, and an installation pipe is fixedly connected to the end of the discharge head away from the mixing chamber. A rubber membrane is detachably installed on the outside of the installation pipe.

[0009] Furthermore, the sidewall of the mounting tube is provided with an annular groove.

[0010] Furthermore, the liquid outlet is located at the top of the sidewall of the sleeve.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] 1. This device adopts an integrated mixing chamber design, in which the powder and solvent are mixed in a closed environment. Medical staff only need to draw the liquid through a needle in the final step. With the use of protective tubes and rubber soft stoppers, the risk of accidental puncture caused by frequent needle changes in traditional operations can be effectively avoided, while reducing the possibility of liquid exposure and contamination.

[0013] 2. This device achieves quantitative injection of solvent and diluent by setting up a precise liquid control component. Operators can directly observe the volume scale and control the liquid volume, ensuring the accuracy and stability of the drug solution preparation, and solving the dosage error problem caused by traditional manual multiple aspiration.

[0014] 3. This device integrates the entire process of liquid injection, mixing and extraction. Furthermore, the one-button liquid injection mechanism of the protective tube, the automatic spring reset design, and the conical replaceable membrane structure of the discharge head greatly simplify the operation steps, allowing medical staff to quickly complete the preparation and extraction of the drug solution without repeatedly changing tools, significantly shortening the operation time and improving the ease of operation. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a side sectional view of the present invention;

[0018] Figure 3 for Figure 2 An enlarged diagram of A in the diagram.

[0019] In the diagram: 1. Mixing chamber; 2. Feed inlet; 3. Sealing plate; 4. Precision liquid control assembly; 5. Discharge head; 6. Observation chamber; 7. Sleeve; 8. Liquid outlet head; 9. Piston rod; 10. Liquid inlet pipe; 11. Tip; 12. Liquid inlet hole; 13. Protective pipe; 14. Rubber soft stopper; 15. Limiting plate; 16. Limiting sleeve; 17. Spring; 18. Mounting pipe; 19. Annular groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Example

[0023] like Figures 1 to 3 As shown, this utility model provides a liquid mixing device, including a mixing chamber 1, an inlet 2 at the top of the mixing chamber 1, a sealing plate 3 for sealing the inlet 2 at the top of the mixing chamber 1, a precision liquid control component 4 fixedly installed at the top of the mixing chamber 1, and a discharge head 5 fixedly connected to the side wall of the mixing chamber 1.

[0024] As a further explanation of this embodiment, the process of preparing penicillin solution using this device is as follows: Open the sealing plate 3, sprinkle penicillin powder into the mixing chamber 1 through the inlet 2, then insert the sealing plate 3 to seal the inlet 2, inject an appropriate amount of solvent into the mixing chamber 1 through the precision liquid control component 4, gently shake the mixing chamber 1 after injection to dissolve the powder, then inject an appropriate amount of diluent into the mixing chamber 1 through the precision liquid control component 4 according to the required concentration of the solution, shake the mixing chamber 1 again to ensure thorough mixing of the solution, and finally extract the prepared solution from the outlet 5 through a syringe for direct injection into the patient. The entire solution preparation process relies primarily on the mixing chamber 1 to mix the solution, eliminating the need for multiple extractions by medical personnel. Only at the final stage, the prepared solution is extracted, significantly reducing the risk of needlestick injury to medical personnel. Furthermore, the process strictly adheres to the prescribed ratio for precise injection of the appropriate amount of solution, resulting in a more effective finished solution.

[0025] In addition, the medication can be withdrawn with a syringe at the end, the needle has low wear, and it is easier for medical staff to insert the needle into the patient's body, reducing the patient's burden. Moreover, the disposable medical supplies have a shorter lifespan, making the treatment process more hygienic and faster, and avoiding the possibility of the needle being exposed to complex environments multiple times and carrying bacteria.

[0026] As a preferred solution provided by a drug liquid mixing device, the precision liquid control component 4 includes an observation chamber 6 fixedly installed on the top of the mixing chamber 1. A sleeve 7 is fixedly installed inside the observation chamber 6. A liquid outlet 8 is opened at the end of the sleeve 7 and is connected to the inside of the mixing chamber 1 through a pipe. A piston rod 9 is slidably installed inside the sleeve 7. A liquid inlet pipe 10 is fixedly connected to the top of the sleeve 7. A pointed tip 11 is fixedly connected to the top of the liquid inlet pipe 10 through the top of the observation chamber 6. Multiple liquid inlet holes 12 are opened on the pointed tip 11.

[0027] As a further explanation of this embodiment, the core working principle of the precision liquid control component 4 in this embodiment is as follows: the side wall of the sleeve 7 is engraved with a capacity mark. The capacity mark on the side wall of the sleeve 7 can be directly observed through the opening of the side wall of the observation chamber 6. Then, the position of the piston rod 9 inside the sleeve 7 is controlled by pushing and pulling the piston rod 9, thereby precisely controlling the maximum value of the solution that can be contained in the sleeve 7. Finally, the tip 11 at the top of the liquid inlet pipe 10 is inserted into the medicine bottle containing the solution to fill the sleeve 7. Then, the solution in the sleeve 7 is pushed into the mixing chamber 1 by the piston rod 9.

[0028] As a preferred embodiment of a liquid mixing device, a protective tube 13 is slidably sleeved on the outside of the inlet pipe 10, a rubber soft plug 14 is installed on the top of the protective tube 13, a limiting plate 15 is fixedly connected to the bottom of the protective tube 13, a limiting sleeve 16 is fixedly connected to the top of the mixing chamber 1, and the limiting plate 15 is slidably installed in the limiting sleeve 16. A spring 17 is slidably installed on the outside of the inlet pipe 10, and the two ends of the spring 17 are respectively pressed against the bottom of the limiting plate 15 and the top of the mixing chamber 1.

[0029] As a further explanation of this embodiment, in order to prevent the tip 11 from piercing the human body under normal conditions, a protective tube 13 is elastically sleeved on the outside of the tip 11. The top of the protective tube 13 is equipped with a rubber soft stopper 14. When the tip 11 needs to pierce the medicine bottle, the rubber soft stopper is opened, the mouth of the medicine bottle is placed upside down on the top of the protective tube 13 and the spring 17 is compressed downward, so that the protective tube 13 slides down, thereby cooperating with the tip 11 to pierce the rubber stopper of the medicine bottle mouth. The medicine enters the sleeve 7 along the liquid inlet 12. After the liquid is injected, the medicine bottle is pulled out from the tip 11. The spring 17 supports the limiting plate 15 to cause the protective tube 13 to return to its original position. Then the rubber soft stopper 14 is reinserted into the top of the protective tube 13 to achieve the effect of protection and sealing.

[0030] As a preferred embodiment of a liquid mixing device, the discharge head 5 is cone-shaped, and an installation pipe 18 is fixedly connected to the end of the discharge head 5 away from the mixing chamber 1. A rubber membrane is detachably installed on the outside of the installation pipe 18.

[0031] As a further explanation of this embodiment, in this embodiment, after the medicine solution is prepared, hold the mixing chamber 1 and rotate the mixing chamber 1 until the discharge head 5 is set downward. At this time, the medicine solution in the mixing chamber 1 flows evenly into the discharge head 5. The prepared solution is then extracted by piercing the rubber membrane with a disposable medical needle to complete the entire medicine solution preparation process.

[0032] As a preferred embodiment of a liquid mixing device, the side wall of the mounting tube 18 is provided with an annular groove 19.

[0033] As a further explanation of this embodiment, in this embodiment, the rubber membrane cannot be reused after being punctured. Therefore, the rubber membrane is a disposable rubber membrane. When the disposable rubber membrane is sleeved on the end of the installation tube 18, the rubber membrane can be quickly replaced by fixing it on the installation tube 18 with a rubber band. In order to avoid the rubber band from sliding and causing the sealing effect of the rubber membrane to deteriorate, an annular groove 19 is opened on the side wall of the installation tube 18 to restrict the rubber band.

[0034] As a preferred embodiment of a drug mixing device, the outlet head 8 is located at the top of the side wall of the sleeve 7.

[0035] As a further explanation of this embodiment, in this embodiment, the liquid outlet 8 is located at the top of the sleeve 7 to prevent the solution in the sleeve 7 from being directly squeezed out from the liquid outlet 8 when it is not full, thus ensuring precise liquid control.

[0036] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the present utility model, and are not intended to limit the implementation methods of the present utility model in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the present utility model, but these should still be regarded as the same technology or embodiment as the present utility model.

[0037] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A pharmaceutical liquid mixing device, comprising a mixing chamber (1), characterized in that, The mixing chamber (1) has a feed inlet (2) at the top, a sealing plate (3) for sealing the feed inlet (2) is installed at the top of the mixing chamber (1), a precision liquid control assembly (4) is fixedly installed at the top of the mixing chamber (1), and a discharge head (5) is fixedly connected to the side wall of the mixing chamber (1).

2. The pharmaceutical solution mixing device according to claim 1, characterized in that, The precision liquid control component (4) includes an observation chamber (6) fixedly installed on the top of the mixing chamber (1). A sleeve (7) is fixedly installed inside the observation chamber (6). An outlet head (8) is provided at the end of the sleeve (7), and the outlet head (8) is connected to the inside of the mixing chamber (1) through a pipe. A piston rod (9) is slidably installed inside the sleeve (7). An inlet pipe (10) is fixedly connected to the top of the sleeve (7). A tip (11) is fixedly connected to the top of the inlet pipe (10) through the top of the observation chamber (6). Multiple inlet holes (12) are opened on the tip (11).

3. The pharmaceutical solution mixing device according to claim 2, characterized in that, A protective tube (13) is slidably sleeved on the outside of the inlet pipe (10). A rubber soft plug (14) is installed on the top of the protective tube (13). A limiting plate (15) is fixedly connected to the bottom of the protective tube (13). A limiting sleeve (16) is fixedly connected to the top of the mixing chamber (1). The limiting plate (15) is slidably installed inside the limiting sleeve (16). A spring (17) is slidably installed on the outside of the inlet pipe (10). The two ends of the spring (17) are respectively pressed against the bottom of the limiting plate (15) and the top of the mixing chamber (1).

4. The pharmaceutical solution mixing device according to claim 1, characterized in that, The discharge head (5) is cone-shaped, and an installation pipe (18) is fixedly connected to the end of the discharge head (5) away from the mixing chamber (1). A rubber membrane is detachably installed on the outside of the installation pipe (18).

5. The pharmaceutical solution mixing device according to claim 4, characterized in that, The side wall of the mounting tube (18) is provided with an annular groove (19).

6. The pharmaceutical solution mixing device according to claim 2, characterized in that, The liquid outlet (8) is located at the top of the side wall of the sleeve (7).

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